From patchwork Wed Dec 16 10:29:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 345238 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E3D8C4361B for ; Wed, 16 Dec 2020 10:30:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32ACF2333E for ; Wed, 16 Dec 2020 10:30:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726146AbgLPKaK (ORCPT ); Wed, 16 Dec 2020 05:30:10 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:42612 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726130AbgLPKaK (ORCPT ); Wed, 16 Dec 2020 05:30:10 -0500 X-IronPort-AV: E=Sophos;i="5.78,424,1599490800"; d="scan'208";a="66169015" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Dec 2020 19:29:39 +0900 Received: from localhost.localdomain (unknown [10.166.252.89]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 38E9142C8FC1; Wed, 16 Dec 2020 19:29:39 +0900 (JST) From: Yoshihiro Shimoda To: ulf.hansson@linaro.org, wsa+renesas@sang-engineering.com Cc: linux-mmc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Takeshi Saito , Yoshihiro Shimoda Subject: [PATCH v2 1/2] mmc: renesas_sdhi_internal_dmac: Fix DMA buffer alignment from 8 to 128-bytes Date: Wed, 16 Dec 2020 19:29:31 +0900 Message-Id: <1608114572-1892-2-git-send-email-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1608114572-1892-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> References: <1608114572-1892-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Takeshi Saito According to the latest datasheet, the internal DMAC buffer alignment R-Car Gen3 SDHI HW should be 128-bytes. So, fix it. Signed-off-by: Takeshi Saito [shimoda: revise commit description, rebase] Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC") Signed-off-by: Yoshihiro Shimoda --- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index fe13e1e..f3e76d6 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -186,8 +186,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, mmc_get_dma_dir(data))) goto force_pio; - /* This DMAC cannot handle if buffer is not 8-bytes alignment */ - if (!IS_ALIGNED(sg_dma_address(sg), 8)) + /* This DMAC cannot handle if buffer is not 128-bytes alignment */ + if (!IS_ALIGNED(sg_dma_address(sg), 128)) goto force_pio_with_unmap; if (data->flags & MMC_DATA_READ) {